Make-and-break igniter.



H. W. BOLENS.

MAKE AND BREAK IGNITER.

APPLICATION mm mm: as, 1912.

1,07 3,087. Patented Sept. 16,1913.

@JnwwXmf: W g/1% wow/Mye HARRY W. FOL-ENS, OF IOREI. WASHINGTON, WISGONSIIE.

, MAKE-AND-BBEAK roman.

inmost.

Specification 01 Letters Intent.

Patented Sept.16, 1913.

Application filed June 88, 181%.. Mi!) No. M453.

To all whom it may concern Be it known that l, HARRY W. BoLENs, a citizen of the United States, and-resident of Port Washington, in the county of Onaukee and State of Wisconsin, have invented certain new and useful Improvements in Makeand-Break Igniters; and I do hereby do clare that the following is a full, clear, and exact description thereof.

My invention refers to IgIIItfB-IS- of the make and break type for gas engines, its object being to provlde a simple, economical, durable and effective means in connection with the link or rod for actuating the movable electrode and also to provide an adjustment of said actuating means with relation to its carrying rod whereby the instant of sparking is timed, the invention being embodied in an igniter trip-pawl and its means of attachment.

The construction and arrangement of my invention is such that the trip-pawl? is fulcrumed' and nested within a skeleton housing, which housing is adj-ustably secured to the valve-rod. by a single bolt and 15 providied with an auxiliary support or stop in connection with said rod whereby twisting strain upon the pivot-bolt is relieved and the pro er position of the engaging nose of the paw is maintained relative to the movable electrode or latch with which it coopcrates.

With the above objects in view the mvention consists in what is herein shown, de-

scribed and claimed.

In the drawings Figure 1 represents a side elevation of an igniter and its actuating means, the same embodying the features of my invention, parts of the igniter being shown diagrammatically and in section to better illustrate the invention; Fig. 2, a detailed sectional plan view of the trip-pawl mechanism, the section being indicated by line 2-2 of Fig. 1; Fig. 3, a detailed sectional elevation of the same, the section be-' ing indicated by line 33 of Fig. 2; Fig. 4:, another section view of the trip-pawl, the section being indicated by line 14 of Fig. 2, and Fig. 5, a' cross-section. of: said pawl. and its connections, the section being indicated by line 55 of Fig. 1.

Referring by characters to the drawings,

1 represents avalve-rod that constitutes a reciprocative link, the rear end of WlllCh valve-rod is connected to a valve-lever 2, the

forward and of the rod being bifurcated for engagement with a stud 3 whereby said end is supported. This stud carries the usual ignition and valvecams, not shown, which mechanism forms no part of my invention. The valve-rod or reeiprocative link is provided with an ear 1 which formed therein arr-elongated slot 1 for the reception of a retaining bolt 4. This bolt serves as a securing means for a trip-pawl 5 and a skeleton housing 6 into which the trip-pawl is nested. The skeleton housing is formed with parallel walls 6, which walls are connected at their shank end by a web 6 and at their outer end by a Web 6, the walls being apertured adjacent to the shank for the reception of the retaining bolt 4. The tripw]; is also provided with an apertured shan for engagement with the retaining bolt upon which it is loosely fulcrumed, the fireeend or nose of said pawl being supported by the housing web 6'. Thus the nose oi said pawl is held in its proper position by gravity and the limit of its upward! movement is checked by the engagement of the shank of the pawl with the adjacent upper edge of the housing web 6; The housing web has extending from its inner wall, in alinement with its outer end, a lug 7, whichlug rests loosely upon a stopfi'ange 8 that projects from the rod.

In attaching the trip-pawlmechanism to the rod the retaining bolt Q is first passed through the members and its projecting threaded shank is thereafter inserted through: the elongated ear apertureof said rod. The housing is then drawn tightly against the inner face of said rod by a retaining nut 4/ which engagesthe threaded end of said bolt and when the parts are so tightened the housing lug 7 is adjusted to its seat upon the stop-flange 8, in which adjustmen]; the pawl therein. assumes an oblique position; with its nose clear of the aforesaid housing.

An igniter mechanism is located in juxtaposition to the pawl, which mechanism forms no part of my present invention and -is shown.- diagrammatically, it being underlatch member is mounted upon a stud 10 and has a spring tail-piece 9 extending therefrom, which tail-piece carries the movable electrode 11 that is arranged to make contact with a stationary electrode 12, the

same constituting one terminal of an elec tric circuit. I

It isapparent from the foregoing descri tion that as the valve-rod moves rearward y that the nose of the trip-pawl will engage the nose of the latch and thus close the circuit. Further travel in the same direction of the valve-rod will cause release of the spring-controlled latch, whereby the circuit is broken in the usual manner and a spark produced. Should it be desired to change the time of ignition it is apparent that the retaining bolt 4 can be loosened and the housing and trip-pawl adjusted back or forth Within the limits of the valve-rod slot, whereby the nose of the pawl will enga e the trip-latch sooner or later and in this a d justment the lug 7 which projects from the housing will ride upon the stop-flange S of Vie rod, whereby the proper angle of the housing and nose of the pawl is maintained. Thus there is no complicated adjustments necessary and the parts can be readily arranged by those unskilled in the art. Owing to the lack of the ordinary complicated adjustments of these parts there is slight liability of the same to become disarranged through tampering or vibration. Attention is also called to the fact that owing to the stop engagement between the housing and rod that t 1e single bolt is sufficient to support the parts rigidly as end thrust tending to twist said parts will be positively resisted by said stop, particular attention being called to the fact that there can be no binding of the fulcrum pawl upon the retaining bolt, incidental to clamping engagement between the housing and red.

I claim:

1. In an igniter mechanism; the combination of an igniter trip-latch, a rod, a doublewalled housing detachably secured thereto the housing walls being connected by a web,

"a trip-pawl fulcrumed between the housing walls, the free end of said trip-pawl-being adapted to rest upon the housing web.

2. In an igniter mechanism; the combination of an igniter trip-latch, a reciprocative rod, a housing, a trip-pawl fitted within the housing, a retaining bolt for securing the trippawl, housing and rod together, the trip-pawl being loosely mounted upon said bolt, and a sup ort carried by the housin for the free en of said trip-pawl. 3. In an igniter mechanism; the combina- .60 tion of an igniter trip-latch, a reciprocative rod provided with an elongated slot, an apertured housing, an a ertured pawl nestedtherein, a securing olt in engagement with the housing aperture, pawl aperture and rodfslot, and a rest for the unsecured end of the housing in connection with said 4. In an igniter mechanism; the combination of an igniter trip-latch, a reciprocative 7o rod provided with an elongated slot, a double-walled skeleton housing havin an aperture at its shank, an apertured s ank a pawl fitted between the housing walls, a retaining bolt engageable with the housing wall, pawl shank aperture and rod aperture, 1 whereby the parts are held, and a stop extending from the said rod for engagement with the unsecured end of the housing.

5. In an igniter mechanism; the combina-. tion of a reciprocative rod having an elongated aperture, a skeleton housing compris ing spaced side-walls having shank and end Webs connecting the same, theside wails being apert-ured adjacent to the shank web, a trip-pawl nested between the housing walls having an apertured shank, a retaining bolt fitted through the housing walls, pawl and elongated aperture of the rod whereby the members are' secured together, and a rest for the outer free end of the housing in connection with said rod.

6.. In an igniter mechanism; the combination ofa reciprocative rod having an elongated aperture, a stop extending from the rod, a skeleton housing comprising spaced side walls having a shank web and an end web connecting the same, the walls being apertured adjacent to the shank web, trippawl nested between the housing walls having an apertured shank, a retaining bolt fitted through the housing wall apertures, pawl aperture and elongated aperture of the rod; whereby the members are secured together, the outer free end of the housing being in engagement with the rod sto In testimony that Iclaim the oregoing I have hereunto set my hand at Milwaukee in the county of Milwaukee and State of Wisconsin in the presence of two witnesses.

HARRY W. BOLENS.

Witnesses M. E. Downer, GEo. W YoUNG. 

